Taishin Financial Holdings: Announcement on Behalf of Subsidiary Taishin Securities Regarding Full Subscription to Cash Capital Increase by Taishin Futures Co., Ltd., a Subsidiary of Taishin Securities

1. Name and nature of target (If it is preferred stock, the agreed issuance conditions of the preferred stock, such as dividend rate, should also be indicated): Taishin Futures Co., Ltd. (hereinafter referred to as "Taishin Futures") new common shares 2. Date of occurrence: 2026/5/12~2026/5/12 3. Date of board approval: May 12, 2026 4. Other approval dates: Not applicable 5. Transaction unit quantity, price per unit, and total transaction amount: 66,666,667 new common shares, NT$12 per share, total transaction amount NT$800,000,004 6. Counterparty and its relationship with the company (If the counterparty is a natural person and not a related party of the company, their name may be omitted): Taishin Futures is a 100% owned subsidiary of Taishin Securities 7. If the counterparty is a related party, the reason for selecting the related party as the counterparty, the previous owner of the transferred property, the relationship between the previous owner, the company, and the counterparty, the previous transfer date, and the transfer amount should also be announced: Taishin Futures is a 100% owned subsidiary of Taishin Securities, for the purpose of expanding its business scale and strengthening its capital. 8. If the ownership of the transaction target has been a related party of the company within the last five years, the acquisition and disposition dates, prices, and the relationship with the company at the time of the transaction should also be announced: Not applicable 9. Relevant matters concerning the disposition of receivables (including the type of collateral attached to the receivables, and if the disposed receivables belong to related party receivables, the name of the related party and the book value of the disposed receivables of that related party should also be announced): Not applicable 10. Gains (or losses) from disposition (Not applicable to acquisition of securities) (If deferred, the recognition status should be listed and explained): Not applicable 11. Delivery or payment terms (including payment period and amount), contract restriction clauses, and other important agreed matters: To be executed after Taishin Futures obtains approval from the Financial Supervisory Commission 12. Method of determining this transaction, reference basis for price determination, and decision-making unit: Determined by Taishin Securities' board of directors with reference to the reasonable price evaluation opinion letter from Sin-Yo United CPA Firm 13. Net asset value per share of the acquired or disposed securities target company: NT$11.22 14. As of now, the quantity, amount, shareholding ratio, and rights restriction status (e.g., pledge status) of cumulative holdings of these transaction securities (including this transaction): (1) Amount: NT$2,161,908,430 (2) Number of shares: 295,661,644 shares (3) Shareholding ratio: 100% (4) Rights restriction status: None 15. As of now, the proportion of investment in securities listed in Article 3 of the "Regulations Governing the Acquisition and Disposition of Assets by Public Companies" (including this transaction) to the total assets and owners' equity attributable to the parent company in the most recent financial report, and the working capital amount in the most recent financial report: (1) Proportion to total assets in the most recent financial report: 113% (2) Proportion to owners' equity attributable to the parent company in the most recent financial report: 601% (3) Working capital amount in the most recent financial report: NT$7,732,418,859 16. Broker and brokerage fees: Not applicable 17. Specific purpose or use of acquisition or disposition: To expand Taishin Futures' business scale and strengthen its capital 18. Opinions of dissenting directors on this transaction: None 19. Is this transaction a related party transaction: Yes 20. Date of approval by supervisor or audit committee: Audit Committee approved on May 12, 2026 21. Accountant's opinion on this transaction is not unreasonable: No 22. Name of accounting firm: Sin-Yo United CPA Firm 23. Name of accountant: Lin Chang-Yu 24. Accountant's practice certificate number: FSC Cert. No. 4562 25. Does it involve a change in business model: No 26. Explanation of business model change: Not applicable 27. Transaction status with counterparty in the past year and expected next year: Not applicable 28. Source of funds: Company's own funds 29. Date of previous material information disclosure on the same event: Not applicable 30. Other matters to be specified: None Keywords: Material Information